Inductor component

Abstract

An inductor component comprises, a glass substrate including first and second main surfaces opposed to each other, and a coil on the glass substrate. The coil is wound in a helical shape along an axis, and includes first coil conductors arranged along the axis on the first main surface of the glass substrate, second coil conductors arranged along the axis on the second main surface of the glass substrate, first through conductors arranged in a staggered manner along the axis and penetrating the glass substrate from the first main surface toward the second main surface, and second through conductors arranged in a staggered manner along the axis and penetrating the glass substrate from the first main surface toward the second main surface. The second through conductors are arranged along the axis and are on an opposite side from the first through conductors with respect to the axis.

What is claimed is: 
     
         1 . An inductor component comprising:
 a glass substrate including a first main surface and a second main surface opposed to each other; and   a coil on the glass substrate and coil wound in a helical shape along an axis,   wherein the coil includes:
 a plurality of first coil conductors arranged along the axis on the first main surface of the glass substrate, 
 a plurality of second coil conductors arranged along the axis on the second main surface of the glass substrate, 
 a plurality of first through conductors penetrating the glass substrate from the first main surface toward the second main surface, the plurality of first through conductors being arranged in a staggered manner along the axis, and 
 a plurality of second through conductors penetrating the glass substrate from the first main surface toward the second main surface, the plurality of second through conductors being on an opposite side from the first through conductors with respect to the axis, and the plurality of second through conductors being arranged in a staggered manner along the axis, 
   wherein   one of the first coil conductors, one of the first through conductors, one of the second coil conductors, and one of the second through conductors are connected in this order to configure at least a part of the helical shape, and   wherein at least one of lengths of the plurality of first coil conductors and lengths of the plurality of second coil conductors alternately repeat long and short along the axis.   
     
     
         2 . The inductor component according to  claim 1 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil,   wherein   a first end surface on an endmost first through conductor side of the first lead conductor is in contact with a first end surface on the first lead conductor side of the endmost first through conductor, and   a diameter of the first end surface of the first lead conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         3 . The inductor component according to  claim 2 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is separated from a center of the first end surface of the endmost first through conductor.   
     
     
         4 . The inductor component according to  claim 2 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric toward the axis side from a center of the first end surface of the endmost first through conductor.   
     
     
         5 . The inductor component according to  claim 2 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric outward in the axis direction from a center of the first end surface of the endmost first through conductor.   
     
     
         6 . The inductor component according to  claim 2 , further comprising:
 a first connection conductor on an opposite side from the first main surface of the first protective layer, and   a first via conductor inserted into the through hole of the first protective layer, the first via conductor being between the first lead conductor and the first connection conductor,   wherein   a first end surface on the first connection conductor side of the first via conductor is in contact with the first connection conductor, and   a diameter of the first end surface of the first via conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         7 . The inductor component according to  claim 1 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.   
     
     
         8 . The inductor component according to  claim 3 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric toward the axis side from a center of the first end surface of the endmost first through conductor.   
     
     
         9 . The inductor component according to  claim 3 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric outward in the axis direction from a center of the first end surface of the endmost first through conductor.   
     
     
         10 . The inductor component according to  claim 4 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric outward in the axis direction from a center of the first end surface of the endmost first through conductor.   
     
     
         11 . The inductor component according to  claim 8 , wherein
 when viewed from a direction orthogonal to the first main surface, a center of the first end surface of the first lead conductor is eccentric outward in the axis direction from a center of the first end surface of the endmost first through conductor.   
     
     
         12 . The inductor component according to  claim 3 , further comprising:
 a first connection conductor on an opposite side from the first main surface of the first protective layer, and   a first via conductor inserted into the through hole of the first protective layer, the first via conductor being between the first lead conductor and the first connection conductor,   wherein   a first end surface on the first connection conductor side of the first via conductor is in contact with the first connection conductor, and   a diameter of the first end surface of the first via conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         13 . The inductor component according to  claim 4 , further comprising:
 a first connection conductor on an opposite side from the first main surface of the first protective layer, and   a first via conductor inserted into the through hole of the first protective layer, the first via conductor being between the first lead conductor and the first connection conductor,   wherein   a first end surface on the first connection conductor side of the first via conductor is in contact with the first connection conductor, and   a diameter of the first end surface of the first via conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         14 . The inductor component according to  claim 5 , further comprising:
 a first connection conductor on an opposite side from the first main surface of the first protective layer, and   a first via conductor inserted into the through hole of the first protective layer, the first via conductor being between the first lead conductor and the first connection conductor,   wherein   a first end surface on the first connection conductor side of the first via conductor is in contact with the first connection conductor, and   a diameter of the first end surface of the first via conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         15 . The inductor component according to  claim 8 , further comprising:
 a first connection conductor on an opposite side from the first main surface of the first protective layer, and   a first via conductor inserted into the through hole of the first protective layer, the first via conductor being between the first lead conductor and the first connection conductor,   wherein   a first end surface on the first connection conductor side of the first via conductor is in contact with the first connection conductor, and   a diameter of the first end surface of the first via conductor is larger than a diameter of the first end surface of the endmost first through conductor.   
     
     
         16 . The inductor component according to  claim 2 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.   
     
     
         17 . The inductor component according to  claim 3 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.   
     
     
         18 . The inductor component according to  claim 4 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.   
     
     
         19 . The inductor component according to  claim 5 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.   
     
     
         20 . The inductor component according to  claim 6 , further comprising:
 a first protective layer on the first main surface of the glass substrate, the first protective layer covering the first coil conductors, and   a first lead conductor being in a through hole of the first protective layer, the first lead conductor being connected to an endmost first through conductor positioned at a first end portion of the coil, wherein when viewed from a direction orthogonal to the first main surface,   each of the first coil conductors extends in a direction inclined with respect to a direction orthogonal to the axis, and   each of the second coil conductors extends in a direction orthogonal to the axis.